Gas-burner.



B. Q. P. FOSS. GAS BURNER.

APPLICATION I'ILED JULY 3, 1809.

992,181 Patented May 16, 1911.

2 SHEETS-SHEET 1.

B. Q. P. POSS. GAS BURNER.

Patented May 16, 1911.

2 SHEETS-SHEET 2.

Inz erzi'or: zay'xnzo n/ 2555,

in JM APPLICATION FILED JULY 3, 1909.

1 1 MW f .S Q 1 UNITED srarns PATENT OFFICE.

BENJAMIN Q. P. FOSS, OF CHICAGO, ILLINOIS, ASSIGNOR TO FOSS GAS BURNER AND HEATING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ARIZONA TERRI- TORY.

GAS-BURNER.

Specification of Letters Patent. Patented May 16, 1911.

Application filed July 3, 1909. Serial No. 505,825.

To all it may concern:

Be it known that I, BENJAMIN Q. P. Foss,

I a citizen of the United States, residing at burner has heretofore been Chicago, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in Gas-Burners, of which the following is a specification.

. My invention relates in general to apparatus for generating heat, and more particularly to gas burners.

It is well-known that ordinary illuminat- I ,ing gas possesses advantages over other forms of fuel for eneratingheat, in that it is smokeless, odor ess, and cleanly, as it is piped directly to the place of use, and leaves no ashes. It is also extremely convenient and very accessible at the present time.

While gas burners are now in general practical use forgdomestic cooking and are used to some extent for locally heat-ing rooms, yet, so far-.as I-am aware, no gas roduced which enables ordinary illuminating gas at the usual low service pressure to be practicallyand econoniically used-as a fuel for generating heat on alarge scale, such, .for instance, as required for bakers ovens, power plants,

factories, heating systems for buildings, etc.

The primary object of my invention is to provide a gas burner which will render it practical and economical to use gas under low pressure, such, forin stance, as ordinary illuminating gas at service pressure, for generating the volume and degree of heat'necessary for large ovens, power plants, heating systems, and the like.

A still further object of my invention is to provide a gas burner which will'be simple in construction, inexpensive in manufacture,

' and eflicient in use.

My invention will be more fully described hereinafter with reference to the accom a,-

nying drawings, in which the same is il us-- I combustion chambers detached; Fi 3, a longitudinal central sectional view t rough .my improved burner; Fig. 4, a. cross sectional view on line 4, Fig. 3; and Fig. 5, a

. cross section on line 5, Fig. 3.

. The same reference characters are used to designate the same parts in the several figures of the drawings.

and B may get-her in allnement, three of such chambers A, and serve for the passage of air through the base.

Secured to the base A is a frusto-conical chamber B having a circular opening at its small end, preferably, aliningwith the tubular projectlon A. The chamber B may be secured to the base A in any suitable manner, as by means of ears 6 projecting from its large end and overlying and secured to thefiange a of the base, screws 0 extending through such cars into engagement with the flange a. Four of such ears I) spaced equal distances apart are shown, but, of course, the number of such ears 1s not material.

The outer surface, of the chamber B is provided with lugs C located adjacent and preferably in alinement with the several ears 6. Such lugs C are provided with recesses 0 which receive the cars 12 projecting from a second chamber B. The ears I) are secured to the lugs C by any suitable fastening devices, such, for instance, as screws 0. The chamber B is of the same construction as the chamber B, and is provided with lugs C having seats 0 therein for receiving ears I) on the third chamber B, which also is of the same construction as chambers Band B Any number of chambers, such as B, B

be in this manner secured tohaving, however, in practice been found sufficient. A fourth chamber B is secured" to the chamber B by means of ears '6 projecting from the larger end thereof and secured in seats 0 formed in the lugs C on the chamber B. The chamber B is also-conical, but is rovided with a more extended tapered, unnel than the other chambers, and 1s not provided with lugs, inasmuch as the lugs are not necessary, owing to the chamber B being the last one in the series.

The. lugs on the several frusto-conical chambers serve not only to connect the adjacent chambers together, but also to space 55 within an oven, or the discharge end thereof may project within .a-chamber whichfis w the chambers apart, thereby forming air supply spaces between the adjacent chambers, such air spaces serving to permit the air to freely pass between the spaced lugs,

I ofthe adjacent chambers.

- Extending through the I A" on the base ply of gas to the 'adjustably secured to the base by means conduit D.

' the larger opening of such coupling. is en-' gaged bya and thence forwardly conical chambers. to" the end of the inner tubular projection burner, such conduit being of a clamp screw a extending through the tubular projection Ainto'contact with the The end of the conduit D is having a hole d extending therethrough, through which the gas is supplied. to a point approximately at the center of the first chamber B. E indicates a T-coupling, with which is connected a pipe F leading from a source of gas supply, such, for instance, as an illuminating gas service pipe. The flow of gas through the pipe F is controlled by provided with a cap D a gate valve If desired, air under pressure may be supplied to thegas before it passes to the burner, in which the'gas passes from the conduit D through the opening d to the interior of the burner.

vReference letter G indicates a pipe for. located within.

supplying air under pressure the gas supply conduit D. The pipe is provided'with a restricted opening g in the end thereof, through which the compressed air is discharged to the interior of the conduit D. The pipe Gr may be conveniently supportedby means of a differential coupling H located in the T-coupling E, as clearly shown in Fig. 3. The end of the pipe G engages within an interiorly screw threaded opening h in the coupling H, while conduit K for supplying air under pressure from any for instance, as a tank *L.; In order to con trol the flow of compressed air through the conduit H, a valve is, preferably a needle valve, is provided therein. A

The manner ofuslng and operation of my improved gas-burner are; as follows: The burner is located in the desired position to generate heat forthe intended purpose.

upon the usual grate of a It may be located H be either located entirely furnace, or may be heated. The valve f is then operated to permit gas to pass through the conduit D and to be disc into the first chamber'BC The; gas is 1gnited after it passes the opening d; The escape, of the gas through the opening d creates a suction, thereby drawing air through the openings in the base which between the adjacent A is a conduit D for the suporder to increase the pressure at suitable source, such,

arged through opening -d" permits the I combustion within the first chamber. The ignited 'gases then pass through the reduced openlng in the chamber B where additional air is received through the space between the adjacent walls of the chambers moting the combustion of the gas. The burning gas then passes successively through the reduced alined endsvof the several chambers, and as it passes from the opening in one chamber to that in the next, it is supplied' with air through the space between the adjacent chambers. It is thus evident that a pluralityof combustion points .are provided in my improved burner, owing to the'successive supply of air to the gas as it passes to the burner. The gas'is conse- B' and B thereby further proquentlycompletely consumed and in-a man' ner to generate the greatest possiblenumber of heat units.

In some installations of my improved burner, it is-desirable to supply compressed air to the gas beforeflit is discharged to the interior of the first chamber, and in such cases the air supply. pipe G and communieating. conduit K are employed. To permit the discharge of air through the restricted opening 9 in the pipe G, the valve k is operated so as to place the tank L, or other source of compressed air, in restricted communlcatlon with the conduit K.

' From the foregoing descrlp observedthat I have invented an improved.

, gas burner, so constructed as to permit the use of gas at low pressure, such as ordinary illuminating gas at the usual lowservice pressure, for thegenerating of heat in great volume and at high temperature, thereby enabling the advantages of gas as a fuel for 1 ing furnaces, locomotive boilers and marine boilers.

-While I have shown and described my invention inits preferred embodiment, it will be understood that it is capable of embodifmentnin other forms than that herein disclosed, and I, therefore, do notwish-to be understood as limiting myself to any specific structural embodiment of my invention,

but contemplate embodying the same in any structures coming'within the spirit of my claims.

tion,it Waite of projections on the larger end of each chamber, lugs on the outer surface of each inner chamber to which the projections on the adjacent outer chamber are secured, and

' a gas supply conduit extending concentrically within the first of said chambers.

2.' In a gas burner, the combination with a base .having air supply passages there-' through, of a gas supply conduit extending through and secured to said base, a plurality of alined frusto-conical chambers mounted upon said base, projections on the larger end of each chamber, and lugs on the outer surface of each inner chamber to which the projections on the adjacent outer chamber are secured.

3. In a gas burner, the combination with a base having air supply openings there through, of a frusto-conical chamber secured to said base at its larger end, a plurality of alined frusto-conical chambers mounted upon said first frusto-conical chamber in alinement therewith, means for spacing said chambers apart to form intermediate air supply passages, and means for supplying gas through said base to the interior of said first frusto-conical chamber.

4. In a gas burner, the combination with a base having air supply openings therethrough, of a frusto-conical chamber, the larger end of which is mounted upon said base, -a plurality of alined frusto-conical chambers mounted upon said first frustoconical chamber in alinement therewith, means for spacing said chambers apart to form intermediate air supply passages, and a gas supply conduit extending through and adjustably secured to said base.

,5 In a gas burner, the combination with a base having air passages therethrough, of

a gas supply conduit extending concentrically through and adjustably secured to said base, a plurality of alined frusto-conical .chambers mounted upon said base, projections on the larger end of each chamber, and lugs on the outer surface of each inner chamber to which the projections on the adjacent outer chamber are secured.

6. In a gas burner, the combination with a base having air supply openings therethrough, of a frusto-conical chamber mounted upon said base at its larger end, a plurality of alined frusto-conical chambers secured to said first chamber in alinement therewith,- means for spacing said chambers apart to form intermediate air supply passage, a gas, supply conduit extending through said base, and means for supplying compressed air to said gas supply conduit.

In testimony whereof, I have subscribed 

